SKU: 16763220678

Mesa Boogie 5U4GB Rectifier Tube (Individual)

Sale price$35.10 Regular price$39.00
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

Mesa Boogie 5U4GB Rectifier Tube (Individual)The MESA 5U4GB Rectifier Tube is our very best overall 5U4 and our rectifier tube of choice in the production of all new MESA amps featuring this tube. This tube produces a "traditional vintage sag" with the most elastic and compressed feel of the two 5U4's that we offer. Amazing feel and exceptional overall quality make this our factory favorite. Based on classic 1950s technology, the 5U4GB is a vastly improved 5U4 design that is extremely reliable

The MESA® 5U4GB Rectifier Tube is our very best overall 5U4 and our rectifier tube of choice in the production of all new MESA amps featuring this tube. This tube produces a "traditional vintage sag" with the most elastic and compressed feel of the two 5U4's that we offer. Amazing feel and exceptional overall quality make this our factory favorite. Based on classic 1950s technology, the 5U4GB is a vastly improved 5U4 design that is extremely reliable and consistent, as well as more compact compared to original “Coke Bottle” 5U4Gs (3 3/4" from bottom of base to top of glass). It is similar in size to a 6L6 power tube so please take special care to install them in the correct tube position(s), especially when replacing 6L6's at the same time. 5U4GB Rectifier Tubes are used in MESA Amps like the Dual and Triple Rectifiers®, Road King®, Roadster®, Stiletto Ace™, Deuce™ & Trident™.

MESA Rectifier Tubes are premium grade and offer unsurpassed consistency and reliability for ANY tube amplifier, and certainly MESA amplifiers!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16763220678

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4.1 ★★★★★
Based on 6 reviews
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Happy_Bean
West Palm Beach, US
★★★★★ 3
Functional and comfortable
Not bad. Not the best quality out there but definitely supportive enough and reasonably priced. There are thin areas at the corners of the pillow that maybe you could fluff out. It does the job!
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Reviewed in the United States on January 16, 2026
S
Sylvie B.
Houston, US
★★★★★ 5
SUPA MODERN Pregnancy Pillow (U-Shaped Full Body Maternity Pillow, Grey)
SUPA MODERN Pregnancy Pillow (U-Shaped Full Body Maternity Pillow, Grey) Pregnancy Pillow = Sleep Upgrade (So Supportive!) “Feels like being hugged all night back and hip support is AMAZING.” ⭐⭐⭐⭐⭐ (5/5) This U-shaped pregnancy pillow is super comfortable and gives full-body support (back, belly, legs, and hips). It really helps with side sleeping and takes pressure off the lower back so you don’t wake up tossing and turning. The velvet cover feels soft and cozy, and I love that it’s removable for easy cleaning. Great for pregnancy AND honestly even for anyone with back/hip pain. Perfect thickness for support. Great value for your money. ✅ Pros: Full-body support, very comfy, removable soft cover, helps side sleepers ⚠️ Note: It’s big (as expected), so it takes up space on the bed—but totally worth it
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Reviewed in the United States on January 21, 2026
P
Pat Pat
San Leandro, US
★★★★★ 5
fantastic value, ridiculous comfort
This U-shaped full-body pillow does take a minute to fluff up after unboxing—kind of like it’s waking from a long nap—but trust me, the wait is worth it. Once fully awake, it’s soft, breathable, and flexible enough to wrap around you like a clingy sloth that actually improves your sleep. The removable velvet cover is so comfy you’ll consider replacing your wardrobe with it, and yes—it’s washable, because life happens. There’s no weird factory smell, which is always a bonus when you’re about to cuddle something the size of a small adult. You can use this pillow everywhere: on the bed, couch, floor, or even in the car (preferably not while driving). It excels at supporting your back, belly, hips, and legs, whether you’re pregnant, tired, or just chronically committed to comfort. Perfect for marathon sleep sessions or those “I’ll just close my eyes for five minutes” naps that last three hours. Quite possibly the best cuddle partner that doesn’t talk back.
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Reviewed in the United States on November 26, 2025
R
Verified Purchase
Roland
Draper, US
★★★★★ 1
Body pillow
They air sealed it. But It came with a lot of empty space through the entire body pillow, Now I have to find stuffing just to make it work.
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Reviewed in the United States on January 11, 2026
L
Leslie
Birmingham, US
★★★★★ 5
I’ve lived decades without this pillow… and I regret every single second!
I can’t even overstate how excited I am about this pillow. I’ve only had it for one night, but in that time, it’s completely changed my life. Literally — I sat on my bed with it all day just hugging it and marveling at how I survived adulthood (and procreation years!) without it. Physically, I’ve been more comfortable in the last 24 hours than I have been for years. And as a bonus, my dogs sleep up against me, which can produce a lot of pressure, but this pillow creates a perfect natural barrier. They seemed to respect it completely — for the first time in three years, I didn’t have a 50lb dog pressing on me all night. Total bliss. The U-shape supports you in all the right places — back, hips, knees, belly — and the velvet cover is soft, removable, and washable. Honestly, whether you’re pregnant or not, this pillow is a life-changing sleep upgrade. I have no idea how I ever lived without it.
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Reviewed in the United States on November 14, 2025

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